Boone Logan

After an injury-plagued 2014, Logan was relieved to have a relatively healthy 2015 campaign prior to his time on the disabled list in August. That being said, relief was something Logan was unable to give for most of the season. He started off well with a 1.80 ERA over the first couple of weeks, but things quickly fell apart for the 31-year-old, as he finished the season with a 4.33 ERA. He posted a phenomenal 11.2 K/9, but he'll need to improve his .399 BABIP and 4.4 BB/9 if he wants to retain his position as the main left-hander in the Rockies' bullpen.

Expectations were high for Logan last season after he was inked to the most lucrative reliever contract in Rockies history, and he was a colossal bust in just about every respect. Complications from an offseason elbow procedure resulted in him landing on the DL out of spring training, and proved bothersome throughout the campaign. He was shut down for good when the inflammation resurfaced in August, with the lefty tossing just 25 innings. Logan did experience a brief spell of success in April and May after returning from his first DL stint, posting a 2.45 ERA and 17:4 K:BB ratio over his initial 13 appearances, but things would only spiral downward from there as his health deteriorated. Those fleeting triumphs give Logan a glimmer of hope for delivering some ROI over the remainder of his deal, though avoiding the injury bug has never been his strong suit. Logan’s disastrous 2014 will afford him little room for missteps during the upcoming season as he looks to justify the Rockies’ huge financial commitment.

Logan is one of the more reliable LOOGYs out there, putting up a 3.23 ERA in 61 appearances that encompassed just 39 innings. The Rockies were compelled to lock him down with a three-year deal in December, which may enable Rex Brothers to push LaTroy Hawkins for the closer's role as it affords the team another left-handed option for the late innings. In any case, Logan's value will be limited mostly to deep formats that reward holds.

Logan has done a decent job out of the Yankees' bullpen for the last few years as he remains tough on lefties (.665 OPS against left-handed hitters last season). His strikeout rate ticked up a bit in 2012, but so did his walk rate, which bumped his WHIP up to 1.37. While Logan is a key member of the bullpen, his seven wins in 2012 were something of a fluke, and his upside is limited as a lefty specialist.

Logan had a good year as the Yankees' primary left-hander out of the bullpen in 2011, putting up a 3.46 ERA and 1.344 WHIP in 64 appearances. He actually did worse against lefties last year than righties (.789 OPS allowed vs. left-handed hitters vs. .673 OPS allowed vs. right-handed hitters), but he'd been dominant against lefties the previous two seasons. He'll be used as a lefty specialist again in 2012, which limits his innings and high-leverage opportunities.

Logan was effective as a lefty specialist last season, posting a 2.93 ERA and notching 38 strikeouts in 40 innings. However, he also issued 20 walks, and the Yankees will likely look for a more established left-handed reliever to pair with him in their bullpen.

Logan was effective as a lefty specialist last season with Atlanta, allowing just a .626 OPS to left-handed batters. However, he appeared in just 20 games as he was stuck behind both Mike Gonzalez and Eric O'Flaherty when manager Bobby Cox needed a lefty out of his bullpen. Even if he's used more in 2010 with the Yankees after being traded to New York, he's still a lefty specialist and won't be used in enough high-leverage situations for viable fantasy value in most leagues.

A lefty specialist in theory, Logan has allowed a .272/.336/.415 line to 245 lefty batters in three seasons. That's not good enough. He'll get a fresh start in Atlanta in a similar role; when you think about how many games the Braves play against the Mets and Phillies and how left-handed those two teams are, Logan is very important to them. Not so much to you.

He doesn't get lefties out well enough to be an effective late-inning option and can't get righties out either. He did show some promise as a 21-year old at Triple-A in 2006 in a relief role but hasn't come close to repeating that performance since. Sadly, he'll likely be the White Sox late-inning lefty this season so they better hope he can regain some of that 2006 form.

Logan impressed in the spring by throwing strikes. He stopped once the season began, walking nine in 11+ innings to force the White Sox to send him down in late May. He figured things out in Triple-A Charlotte, striking out 57 in 42+ innings while walking just 12. He returned to the Sox in September to walk six more in five innings. The 22-year-old lefty should enter 2006 in the picture for a middle relief job in the majors, and maybe he'll overcome the awe of being in the big leagues this time around.

20th round pick in 2002 might have a future as a LOOGY someday. His stuff is adequate but he throws strikes and is deceptive against lefties.